The Knicks spent years looking for a giant. Jalen Brunson became something bigger.

SAN ANTONIO — When New York’s 53-year wait for an NBA championship finally ended Saturday, Karl-Anthony Towns bumped chests with Patrick Ewing. Coach Mike Brown hugged Spike Lee and wandered away from the orange-and-blue celebration at mid-court in disbelief.

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“It was surreal,” Brown said. “I couldn’t believe that it was happening.”

Amid the catharsis, Jalen Brunson stoically walked down the sideline to shake hands with Spurs coach Mitch Johnson. Only when he turned around and saw his father, Knicks assistant Rick Brunson, and his close friend Josh Hart, did the emotions come pouring out.

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“And then I was emotional for a good five, 10 minutes,” Brunson said.

And for good reason. The Knicks’ championship shattered two long-held NBA assumptions: that a franchise that struggled for so long lacked the ability to reach the top of the league again, and that a team built around a 6-foot-2 point guard could not win in a sport historically dominated by giants.

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